4444808521 has 8 divisors (see below), whose sum is σ = 4504682880. Its totient is φ = 4385024592.

The previous prime is 4444808519. The next prime is 4444808539. The reversal of 4444808521 is 1258084444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4444808521 - 2¹ = 4444808519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4444808561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79431 + ... + 123283.

It is an arithmetic number, because the mean of its divisors is an integer number (563085360).

Almost surely, 2^4444808521 is an apocalyptic number.

It is an amenable number.

4444808521 is a deficient number, since it is larger than the sum of its proper divisors (59874359).

4444808521 is a wasteful number, since it uses less digits than its factorization.

4444808521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45215.

The product of its (nonzero) digits is 163840, while the sum is 40.

The square root of 4444808521 is about 66669.3971849154. The cubic root of 4444808521 is about 1644.1862761610.

The spelling of 4444808521 in words is "four billion, four hundred forty-four million, eight hundred eight thousand, five hundred twenty-one".